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veekogudes sisalduva orgaanilise aine lagundamiseks vajalik hapnik, Verbrauch an Sauerstoff bei der Oxidation organischer Stoffe in Gewässern, the quantity of oxygen used in the oxidation of substances in a specified time, at a specified temperature, and under specified conditions
oxygen demand . Limnoloogia sõnastik. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//lim/oxygen%20demand/1/eng (19.06.2026)
